This second edition provides new and updated chapters covering computational and mathematical techniques and concepts related to the field of comparative genomics. The topics covered in the chapters range from those that address general techniques and concepts that apply to all organisms to others that are specialized and apply to specific biological systems such as viruses, bacteria, nematodes, and insects. Well-known comparative genomics web-based platforms are also covered in specific chapters. Written in the highly successful Methods in Molecular Biology series format, many chapters include introductions to their respective topics and step-by-step comparison procedures, demonstrated on actual sets of genome sequences. Authoritative and cutting-edge, Comparative Genomics: Methods and Prools, Second Edition aims to ensure successful results in the further study of this vital field.